The RFX-1500/2500 Wire and Cable Locator is designed to trace and locate, all types of inside and outside wiring and piping. The RFX-1500/2500 takes the design of the RFX Family of locators one step further. The RFX-1500 Transmitter can be connected to LIVE AC power (up to 220VAC) to allow tracing of live electrical circuits in the house, or buried outdoors.